9117973880 has 16 divisors (see below), whose sum is σ = 20515441320. Its totient is φ = 3647189536.

The previous prime is 9117973873. The next prime is 9117973901. The reversal of 9117973880 is 883797119.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113974634 + ... + 113974713.

Almost surely, 2^9117973880 is an apocalyptic number.

It is an amenable number.

9117973880 is an abundant number, since it is smaller than the sum of its proper divisors (11397467440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9117973880 is a wasteful number, since it uses less digits than its factorization.

9117973880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227949358 (or 227949354 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 53.

The square root of 9117973880 is about 95488.0823977527. The cubic root of 9117973880 is about 2089.1331218673.

The spelling of 9117973880 in words is "nine billion, one hundred seventeen million, nine hundred seventy-three thousand, eight hundred eighty".